Title

Creating Performance Curves for Variable Refrigerant Flow Heat Pumps in EnergyPlus

Report Number

FSEC-CR-1910-12

URL

http://publications.energyresearch.ucf.edu/wp-content/uploads/2018/06/FSEC-CR-1910-12.pdf

Keywords

Heat Pumps; Simulation

Abstract

This document describes methods to generate performance curve coefficients for variable refrigerant flow heat pumps in DOE's EnergyPlus building energy simulation program. Manufactures performance data for capacity and power are used to create full-load and part-load performance curves for cooling and heating operating modes. When performance variations for full-load capacity or power cannot be modeled using a single performance curve, the data set is divided into lower and upper temperature regions and dual performance curves are used. Table objects may also be created to substitute when performance curves do not provide the required accuracy. These performance curves or tables are then used as input data for the variable refrigerant flow heat pump model. The techniques described in this paper can be used to create performance curves for any EnergyPlus equipment model.

Date Published

3-8-2012

Subjects

Heat Pumps; Simulation

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